Apparatus for disintegrating fibrous material.



W. H. STOBIE.

APPARATUS FOR DISINTEGRATING FIBROUS MATERIAL.

APPLICATION FILED 11111.23, 1913. RENEWED JULY 1. 1915.

1., 182,432. Patented May 9, 1916.

THE COLUMBIA PLANOGRAPH 50.. WASHINGTON, D c

ere @FMQ, i 1

WILLIAM H. sroBIE, or warEnvILLnfr/iiinvn, nssrenon To rioriranerswonrrr a WHITNEY cor/ ri nr, or nosrora, MASSACHUSETTS. A cenrona'rron or MASSA- CHUSETTS.

arrnnnrns non nrsinrnenn rlns rrsnons MATERIAL.

Specification of Letters Patent.

Patented May i), 1916?.

Application filed January 23, 1913,=Serial No. 743,873. Renewed July 1, 1915. Serial No. 37,593.

Toallwhom tmfey concern: a i

Be it known that I, VILLTAM H. S'ronm, of lVaterville, in the county, of Kennebec and State of Maine, have invented certain new and useful Improvements in Apparatus for Disintegrating Fibrous Material; and I do hereby declare the following tobea full, clear, and exact description of the invention, such as will enable others skilled insthe art to which it appertains to make and use the same. 4 v

My invention relates to an improvement in apparatus for disintegrating fibrous ma terial, the object being rapidly and uniformly to condition the fibers in,a much shorter time, andat greatly reduced cost, than can be done under the processes or by apparatus now in use, and my improved apparatusmay be used in a process wherein the fibrous material is mixed with water and projected against a target.

My invention further consists details'as will behereinafter more fully explained and pointed out in the claims," The accompanying drawings show a view in elevation partly in section ofone form of my improved apparatus.

A tankisrepresented at 1, having a target 2 therein. This target maybe of anyshape and construction and is provided with a roughened or otherwise conditioned surface or surfaces against which the pulp stock is projected by the nozzles 5, three of which are shown. Leading from the bottom of the tank 1 to the pump 6 is the pipe 7, and leading from the pump to the nozzles 5 is the pipe 8, the pipe 7 being preferably of larger diameter than the pipe 8 so as to provide for the necessary pressure in the latter. The pipe 7 is provided with a throttle valve 11 by which the pressure of the pulp stock in the pipe 8 and nozzles 5 is regulated, and the pipe 8 is provided with a valve 12 by which the flow to the nozzles 5 may be cut off.

Located within the tank 1 is an agitator 9 secured to a vertical shaft 10, which is provided at its upper end, preferably in a plane above the top of the tank 1, with a bevel gear wheel 13, which meshes with a bevel pinion 14 on the driving shaft 15, the latter being coupled up to a motor or other source of power. This agitator is kept in motion while the pulp is being treated in in certain order to keep the latter thoroughly mixed and inmotion so as to prevent it from settling on the bottom of the tank at a point removed from the inlet to pipe 7. 1

- Located in a plane above the tankl is the beater engine 16, in which the pulp stock is partly shredded. or disintegrated before it passes to the tank 1. After the stock has been treated in the engine 16 it isdischarged through pipe 17 into tank 1. stock has been discharged into tank 1 the agitator and pump may be started and the stock forced under high pressure by the pump, through the nozzles 5 against the target- 2. The stock is unconfined after it leaves the nozzles, and hence is free to spread out under the impactiover the surface of the target and thus expose all the After the stock to the disintegrating action of theface of the target. The stock after contact with the target, falls back into the tank and is acted upon by the agitator, and again carried through the pump and nozzles to the target, andthis operation is repeateduntil the desired condition of the stock has been attained. ,Afterthe required condition of the paper stock has been attained by repeated contact with the target, the valve 12 in pipe 8 may be closed and the valve 18 in pipe 19 opened. This pipe leads from pipe 8 at a point below valve 12 to the machine chest, from which the pulp is pumped to the paper making machine, so that after treatmentin tank 1, the pulp is forced by pump 6 and pipes 8 and 19 direct to the chest from which the paper making machine takes its pulp. Located in the pipe 8 intermediate the pump 6 and the valve 12, is the chamber 20, within which is a diaphragm, and leading from one side of this diaphragm to the recording gage 0f paper, and in such cases the beater engine 7 16 need not be used.

In using my invention less than pne half so many minutes, and he needs only'to-start with the proper pressure, and, watching the chart on the gage, can operate the valves to maintain or change 7 the pressure asmay' be necessary.

Under the old system from four to twelve heaters are used, and as some maybe dull and out of shape and others sh-arp,-the product from the different heaters may vary. Again under the old system the operators of the different machines may have d'iflerent views as to how the pulp shouldbetreated, and the extent of the treatment, but with my apparatus the resultant product is uniform.

It is evident that many slight changes might be resorted to in the relative arrangementof parts shown and described without departing from the spiritand scope of my invention. stood that I do not wish to confine -myself to the exact construction andarrange'ment of parts shown and described.

I claim: 1. The combination of a tank, a target specification in the- Hence I would have it under-' having a roughened surface, a nozzle for Pr jecti g a st eam .of pulp against sai target, pump, a pipe lea ing from. the

pump to the nozzl'e, pressure indicating means connected With said pipe, and pressureregulating ,means intermediate the vat and the nozzle whereby the pressure of the pulp stream passing to the target may be regulated.

2. The combination of :a .tank, a target having a roughened surface, a pump, a pipe means connected therewith, and pressure regulating means whereby the pressure of the pulpstream passingto the target may be regulated. I v Intesti-mony whereofil have signed this presence of two'subscribing witnesses. v

WILLIAM H. SIOBIE. Witnesses: i

JOSEPH R. GooDWIN, HARVEY L. BURRILL.

Copies Of'zthll patentmapbe obtained-ionfive cents each by addressing the commiss io ner of Patents,

' Washington, 0. 0. 

